[Sidefx-houdini-list] Point Cloud lookup in POPs

Premamurti Paetsch premamurti.paetsch at gmail.com
Thu Jul 15 01:25:08 EDT 2010


Thanks for that Andrew!

I'll give the suggested hack a go, sounds promising.

Cheers,
Prema

On 15 July 2010 14:30, Graham Thompson <captainhammy at gmail.com> wrote:

> I forgot to mention you should be able to hack it though by using an
> intermediary SOP Network.  For example, if you throw down a SOP
> Network in your popnet then inside that throw down a Pop Merge SOP.
> You can point that to a specific POP in your chain (the node before
> your VOP POP) and it will merge in the particles from that.  You could
> then tell your pcopen VOP in the VOP POP use the op: syntax to
> retrieve the geometry from the POP Merge and you should be good to go.
>  In theory anyway.  My really old test file still seems to work.
>
> On Wed, Jul 14, 2010 at 9:39 PM, Graham Thompson <captainhammy at gmail.com>
> wrote:
> > Unfortunately the op: command doesn't support reading geometry from a
> > POP stream so you are out of luck.  I'm pretty sure there's an RFE
> > kicking around for it somewhere though so it's always a possibility
> > support will be added in the future.
> >
> > On Wed, Jul 14, 2010 at 9:13 PM, Premamurti Paetsch
> > <premamurti.paetsch at gmail.com> wrote:
> >> Hey everyone,
> >>
> >> I'm trying to look up a point cloud inside a POP network, which works
> fine
> >> when pointing the geometry input to an external source in SOP's (using
> the
> >> op: command).
> >> But I can't figure out how to do the look up on itself, ie. having a VOP
> POP
> >> looking up point data from the incoming node above it inside POP's. All
> it
> >> returns is zero, also the handle coming from the pc open VOP seems
> invalid.
> >> :-(
> >>
> >> Is this even possible?
> >>
> >> Thanks,
> >> Prema
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